Benjamin p



(No Model.)

.B. P. FLOOD.

PERFO RATING DEVICE. No. 569,187. Patented 0et. 1 3,'1896'.

WITNESSES: INVENTOR 01 M. 7 BY I I M;

. I ATTORNEY.

- UNITED STATES PATENT OFFICE.

BENJAMIN P. FLOOD, OF OMAHA, NEBRASKA, ASSIGNOR OF TWO-TI-IIRDS TO ALFRED H. OOMSTOOK AND ROBERT R. BALIMAN, OF SAME PLACE.

PERFORATING DEVICE.

SREOIFIGATION forming part of Letters Patent No. 569,187, dated October 13, 1896.

Application filed Tune 20, 1895. Serial No. 553,479. (No model.) I

and State of Nebraska, have invented certain useful Improvements in Perforating Devices for Printing-Presses; and I do hereby declare that the following is a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

This invention has relation to a new and novel improvement in a perforating device to be attached to a printing-press, the object being to furnish a means adapted to be attached to any cylinder-press, and comprising an adjustable mechanism, so that the work before it leaves the press is properly perforated.

In the accompanying drawings, Figure 1 shows a side elevation of an ordinary press, disclosing the arrangement of my improved perforatingmeohanism. Fig. 2 is an enlarged broken detail view more clearly showing the arrangement of the instrumentalities, while Fig. 3 shows a detached detail of one of the perforating-knives.

The aim of my invention is to provide a simple perforating device adapted to be attached to an ordinary bed-and-cylinder printing-press, during the process of which the the sheet is first fed down the feed-board at the right of the figure, as will be understood in referring to Fig. 1, the sheet passing partly around the impression-cylinder, being then perforated by the rotary perforator, then passes to the form, where it is printed.

In the drawings, A represents the supporting-frame of any ordinary printing-press provided with a cylinder B and the usual sliding bed M, as is common in these machines. Secured to the frame A of the press are two bearings B, which bearings have a slot 2, within which the adjusting-screw 3 is adjustably held. Working within these bearings B is a shaft C, preferably having its two bearing ends of a diameter less than be printed and delivered.

that of the shaft 0 proper, as is shown in Fig. 2. The ends of the shaft 0 are further threaded. IVorkin g upon the threaded ends of this shaft are two sets of nuts, the inner ones marked 5 and the outer ones being marked 6. Bet-ween each of the nuts are held the friction-disks 7, which can be of any suitable size and thickness and are held adjustably upon the shaft O by means of the nuts 5 and 6. These friction-wheels are so arranged that they are tightly forced against the cylinder B proper, and so impart a rotary movement to this shaft 0.

Mounted upon the shaft B are two adj ustable hubs Ct, provided with the set-screws 12, which hubs have further secured to them the cutting-disks or rotary knives E, secured thereto by means of ordinary screws 8. These hubs are adj ustably heldupon the shaft and any suitable number may be used, depending, of course, upon the number of line-perforations to be made. j

The paper to be perforated would be fed down the feed-board to the cylinderB in the usual manner and in its path to the type would encounter these knives E, which knives would partially pass through the paper A, as is shown in Fig. 2, and after being perforated would of course be carried to the form and It will be noticed that the sheet is perforated before it reaches the type and that there is notime lost and that the objectionable feature of the knives forming part of the form is eliminated.

The reference-letterK shows the dividingin connection with a cylinder-press comprising the solid bearings, B, B, adjustably secured to the bed of the press,'the shaft, O, rotatably held within said bearings, the friction-disks, 7, 7, adjustably mounted upon cylinder, all substantially as and for the pursaid shaft, 0, by means of the ends, 5 and 6, pose set forth. 1o threaded upon said shaft, 0, said friction- Intestimony whereof I affix my signature disksavorking against the cylinder of the in presence of two Witnesses.

press, the sliding collars, a, a, adjustably BENJAMIN P. FLOOD. upon said shaft, 0 in combination with the Vitnesses:

cutter-knives, e, e, secured to said sliding A. H. COMSTOOK,

collars, a, a, and adapted to Work against the H. Mi'INTsFERING. 

